Factor out generic toolkit aspects of FUEL into a reusable form (bug 407693), patch by Joey Minta <jminta@gmail.com> and Emre Birol <ebirol@gmail.com>; r=mfinkle, moa for adding toolkit directory=bsmedberg, a1.9b5=beltzner

This commit is contained in:
dmose@mozilla.org 2008-03-24 17:38:03 -07:00
parent 2de08e5ba8
commit c6135efabf
6 changed files with 1230 additions and 1025 deletions

View File

@ -1,354 +1,50 @@
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FUEL.
*
* The Initial Developer of the Original Code is Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mark Finkle <mfinkle@mozilla.com> (Original Author)
* John Resig <jresig@mozilla.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
#include "extIApplication.idl"
interface nsIVariant;
interface nsIURI;
interface nsIDOMHTMLDocument;
interface fuelIPreference;
interface fuelIBookmarkFolder;
interface fuelIBrowserTab;
/**
* Interface that gives simplified access to the console
*/
[scriptable, uuid(ae8482e0-aa5a-11db-abbd-0800200c9a66)]
interface fuelIConsole : nsISupports
{
/**
* Sends a given string to the console.
* @param aMsg
* The text to send to the console
*/
void log(in AString aMsg);
/**
* Opens the error console window. The console window
* is focused if already open.
*/
void open();
};
/**
* Interface holds information about an event.
*/
[scriptable, function, uuid(05281820-ab62-11db-abbd-0800200c9a66)]
interface fuelIEventItem : nsISupports
{
/**
* The name of the event
*/
readonly attribute AString type;
/**
* Can hold extra details and data associated with the event. This
* is optional and event specific. If the event does not send extra
* details, this is null.
*/
readonly attribute AString data;
/**
* Cancels the event if it is cancelable.
*/
void preventDefault();
};
/**
* Interface used as a callback for listening to events.
*/
[scriptable, function, uuid(2dfe3a50-ab2f-11db-abbd-0800200c9a66)]
interface fuelIEventListener : nsISupports
{
/**
* This method is called whenever an event occurs of the type for which
* the fuelIEventListener interface was registered.
*
* @param aEvent
* The fuelIEventItem associated with the event.
*/
void handleEvent(in fuelIEventItem aEvent);
};
/**
* Interface for supporting custom events.
*/
[scriptable, uuid(3a8ec9d0-ab19-11db-abbd-0800200c9a66)]
interface fuelIEvents : nsISupports
{
/**
* Adds an event listener to the list. If multiple identical event listeners
* are registered on the same event target with the same parameters the
* duplicate instances are discarded. They do not cause the EventListener
* to be called twice and since they are discarded they do not need to be
* removed with the removeListener method.
*
* @param aEvent
* The name of an event
* @param aListener
* The reference to a listener
*/
void addListener(in AString aEvent, in fuelIEventListener aListener);
/**
* Removes an event listener from the list. Calling remove
* with arguments which do not identify any currently registered
* event listener has no effect.
* @param aEvent
* The name of an event
* @param aListener
* The reference to a listener
*/
void removeListener(in AString aEvent, in fuelIEventListener aListener);
};
/**
* Interface for simplified access to preferences. The interface has a
* predefined root preference branch. The root branch is set based on the
* context of the owner. For example, an extension's preferences have a root
* of "extensions.<extensionid>.", while the application level preferences
* have an empty root. All preference "aName" parameters used in this interface
* are relative to the root branch.
*/
[scriptable, uuid(ce697d40-aa5a-11db-abbd-0800200c9a66)]
interface fuelIPreferenceBranch : nsISupports
{
/**
* The name of the branch root.
*/
readonly attribute AString root;
/**
* Array of fuelIPreference listing all preferences in this branch.
*/
readonly attribute nsIVariant all;
/**
* The events object for the preferences
* supports: "change"
*/
readonly attribute fuelIEvents events;
/**
* Check to see if a preference exists.
* @param aName
* The name of preference
* @returns true if the preference exists, false if not
*/
boolean has(in AString aName);
/**
* Gets an object representing a preference
* @param aName
* The name of preference
* @returns a preference object, or null if the preference does not exist
*/
fuelIPreference get(in AString aName);
/**
* Gets the value of a preference. Returns a default value if
* the preference does not exist.
* @param aName
* The name of preference
* @param aDefaultValue
* The value to return if preference does not exist
* @returns value of the preference or the given default value if preference
* does not exists.
*/
nsIVariant getValue(in AString aName, in nsIVariant aDefaultValue);
/**
* Sets the value of a storage item with the given name.
* @param aName
* The name of an item
* @param aValue
* The value to assign to the item
*/
void setValue(in AString aName, in nsIVariant aValue);
/**
* Resets all preferences in a branch back to their default values.
*/
void reset();
};
/**
* Interface for accessing a single preference. The data is not cached.
* All reads access the current state of the preference.
*/
[scriptable, uuid(2C7462E2-72C2-4473-9007-0E6AE71E23CA)]
interface fuelIPreference : nsISupports
{
/**
* The name of the preference.
*/
readonly attribute AString name;
/**
* A string representing the type of preference (String, Boolean, or Number).
*/
readonly attribute AString type;
/**
* Get/Set the value of the preference.
*/
attribute nsIVariant value;
/**
* Get the locked state of the preference. Set to a boolean value to (un)lock it.
*/
attribute boolean locked;
/**
* Check if a preference has been modified by the user, or not.
*/
readonly attribute boolean modified;
/**
* The preference branch that contains this preference.
*/
readonly attribute fuelIPreferenceBranch branch;
/**
* The events object for this preference.
* supports: "change"
*/
readonly attribute fuelIEvents events;
/**
* Resets a preference back to its default values.
*/
void reset();
};
/**
* Interface representing a simple storage system
*/
[scriptable, uuid(0787ac44-29b9-4889-b97f-13573aec6971)]
interface fuelISessionStorage : nsISupports
{
/**
* The events object for the storage
* supports: "change"
*/
readonly attribute fuelIEvents events;
/**
* Determines if a storage item exists with the given name.
* @param aName
* The name of an item
* @returns true if an item exists with the given name,
* false otherwise.
*/
boolean has(in AString aName);
/**
* Sets the value of a storage item with the given name.
* @param aName
* The name of an item
* @param aValue
* The value to assign to the item
*/
void set(in AString aName, in nsIVariant aValue);
/**
* Gets the value of a storage item with the given name. Returns a
* default value if the item does not exist.
* @param aName
* The name of an item
* @param aDefaultValue
* The value to return if no item exists with the given name
* @returns value of the item or the given default value if no item
* exists with the given name.
*/
nsIVariant get(in AString aName, in nsIVariant aDefaultValue);
};
/**
* Interface representing an extension
*/
[scriptable, uuid(10cee02c-f6e0-4d61-ab27-c16572b18c46)]
interface fuelIExtension : nsISupports
{
/**
* The id of the extension.
*/
readonly attribute AString id;
/**
* The name of the extension.
*/
readonly attribute AString name;
/**
* Check if the extension is currently enabled, or not.
*/
readonly attribute boolean enabled;
/**
* The version number of the extension.
*/
readonly attribute AString version;
/**
* Indicates whether this is the extension's first run after install
*/
readonly attribute boolean firstRun;
/**
* The preferences object for the extension. Defaults to the
* "extensions.<extensionid>." branch.
*/
readonly attribute fuelIPreferenceBranch prefs;
/**
* The storage object for the extension.
*/
readonly attribute fuelISessionStorage storage;
/**
* The events object for the extension.
* supports: "uninstall"
*/
readonly attribute fuelIEvents events;
};
/**
* Interface representing a list of all installed extensions
*/
[scriptable, uuid(de281930-aa5a-11db-abbd-0800200c9a66)]
interface fuelIExtensions : nsISupports
{
/**
* Array of fuelIExtension listing all extensions in the application.
*/
readonly attribute nsIVariant all;
/**
* Determines if an extension exists with the given id.
* @param aId
* The id of an extension
* @returns true if an extension exists with the given id,
* false otherwise.
*/
boolean has(in AString aId);
/**
* Gets a fuelIExtension object for an extension.
* @param aId
* The id of an extension
* @returns An extension object or null if no extension exists
* with the given id.
*/
fuelIExtension get(in AString aId);
};
/**
* Interface representing a collection of annotations associated
* with a bookmark or bookmark folder.
@ -452,7 +148,7 @@ interface fuelIBookmark : nsISupports
* The events object for the bookmark.
* supports: "remove", "change", "visit", "move"
*/
readonly attribute fuelIEvents events;
readonly attribute extIEvents events;
/**
* Removes the item from the parent folder. Used to
@ -504,7 +200,7 @@ interface fuelIBookmarkFolder : nsISupports
* The events object for the folder.
* supports: "add", "addchild", "remove", "removechild", "change", "move"
*/
readonly attribute fuelIEvents events;
readonly attribute extIEvents events;
/**
* Array of all bookmarks, separators and folders contained
@ -539,7 +235,6 @@ interface fuelIBookmarkFolder : nsISupports
void remove();
};
/**
* Interface representing a container for bookmark roots. Roots
* are the top level parents for the various types of bookmarks in the system.
@ -568,7 +263,6 @@ interface fuelIBookmarkRoots : nsISupports
readonly attribute fuelIBookmarkFolder unfiled;
};
/**
* Interface representing a browser window.
*/
@ -596,7 +290,7 @@ interface fuelIWindow : nsISupports
* The events object for the browser window.
* supports: "TabOpen", "TabClose", "TabMove", "TabSelect"
*/
readonly attribute fuelIEvents events;
readonly attribute extIEvents events;
};
/**
@ -629,7 +323,7 @@ interface fuelIBrowserTab : nsISupports
* The events object for the browser tab.
* supports: "load"
*/
readonly attribute fuelIEvents events;
readonly attribute extIEvents events;
/**
* Load a new URI into this browser tab.
@ -662,56 +356,12 @@ interface fuelIBrowserTab : nsISupports
void moveToEnd();
};
/**
* Interface for managing and accessing the applications systems
*/
[scriptable, uuid(fe74cf80-aa2d-11db-abbd-0800200c9a66)]
interface fuelIApplication : nsISupports
interface fuelIApplication : extIApplication
{
/**
* The id of the application.
*/
readonly attribute AString id;
/**
* The name of the application.
*/
readonly attribute AString name;
/**
* The version number of the application.
*/
readonly attribute AString version;
/**
* The console object for the application.
*/
readonly attribute fuelIConsole console;
/**
* The extensions object for the application. Contains a list
* of all installed extensions.
*/
readonly attribute fuelIExtensions extensions;
/**
* The preferences object for the application. Defaults to an empty
* root branch.
*/
readonly attribute fuelIPreferenceBranch prefs;
/**
* The storage object for the application.
*/
readonly attribute fuelISessionStorage storage;
/**
* The events object for the application.
* supports: "load", "ready", "quit", "unload"
*/
readonly attribute fuelIEvents events;
/**
* The root bookmarks object for the application.
* Contains all the bookmark roots in the system.

View File

@ -40,520 +40,6 @@ const Cc = Components.classes;
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
//=================================================
// Shutdown - used to store cleanup functions which will
// be called on Application shutdown
var gShutdown = [];
//=================================================
// Console constructor
function Console() {
this._console = Components.classes["@mozilla.org/consoleservice;1"]
.getService(Ci.nsIConsoleService);
}
//=================================================
// Console implementation
Console.prototype = {
log : function cs_log(aMsg) {
this._console.logStringMessage(aMsg);
},
open : function cs_open() {
var wMediator = Components.classes["@mozilla.org/appshell/window-mediator;1"]
.getService(Ci.nsIWindowMediator);
var console = wMediator.getMostRecentWindow("global:console");
if (!console) {
var wWatch = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(Ci.nsIWindowWatcher);
wWatch.openWindow(null, "chrome://global/content/console.xul", "_blank",
"chrome,dialog=no,all", null);
} else {
// console was already open
console.focus();
}
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIConsole])
};
//=================================================
// EventItem constructor
function EventItem(aType, aData) {
this._type = aType;
this._data = aData;
}
//=================================================
// EventItem implementation
EventItem.prototype = {
_cancel : false,
get type() {
return this._type;
},
get data() {
return this._data;
},
preventDefault : function ei_pd() {
this._cancel = true;
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIEventItem])
};
//=================================================
// Events constructor
function Events() {
this._listeners = [];
}
//=================================================
// Events implementation
Events.prototype = {
addListener : function evts_al(aEvent, aListener) {
if (this._listeners.some(hasFilter))
return;
this._listeners.push({
event: aEvent,
listener: aListener
});
function hasFilter(element) {
return element.event == aEvent && element.listener == aListener;
}
},
removeListener : function evts_rl(aEvent, aListener) {
this._listeners = this._listeners.filter(function(element){
return element.event != aEvent && element.listener != aListener;
});
},
dispatch : function evts_dispatch(aEvent, aEventItem) {
eventItem = new EventItem(aEvent, aEventItem);
this._listeners.forEach(function(key){
if (key.event == aEvent) {
key.listener.handleEvent ?
key.listener.handleEvent(eventItem) :
key.listener(eventItem);
}
});
return !eventItem._cancel;
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIEvents])
};
//=================================================
// PreferenceBranch constructor
function PreferenceBranch(aBranch) {
if (!aBranch)
aBranch = "";
this._root = aBranch;
this._prefs = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefService);
if (aBranch)
this._prefs = this._prefs.getBranch(aBranch);
this._prefs.QueryInterface(Ci.nsIPrefBranch);
this._prefs.QueryInterface(Ci.nsIPrefBranch2);
// we want to listen to "all" changes for this branch, so pass in a blank domain
this._prefs.addObserver("", this, true);
this._events = new Events();
var self = this;
gShutdown.push(function() { self._shutdown(); });
}
//=================================================
// PreferenceBranch implementation
PreferenceBranch.prototype = {
// cleanup observer so we don't leak
_shutdown: function prefs_shutdown() {
this._prefs.removeObserver(this._root, this);
this._prefs = null;
this._events = null;
},
// for nsIObserver
observe: function prefs_observe(aSubject, aTopic, aData) {
if (aTopic == "nsPref:changed")
this._events.dispatch("change", aData);
},
get root() {
return this._root;
},
get all() {
return this.find({});
},
get events() {
return this._events;
},
// XXX: Disabled until we can figure out the wrapped object issues
// name: "name" or /name/
// path: "foo.bar." or "" or /fo+\.bar/
// type: Boolean, Number, String (getPrefType)
// locked: true, false (prefIsLocked)
// modified: true, false (prefHasUserValue)
find : function prefs_find(aOptions) {
var retVal = [];
var items = this._prefs.getChildList("", []);
for (var i = 0; i < items.length; i++) {
retVal.push(new Preference(items[i], this));
}
return retVal;
},
has : function prefs_has(aName) {
return (this._prefs.getPrefType(aName) != Ci.nsIPrefBranch.PREF_INVALID);
},
get : function prefs_get(aName) {
return this.has(aName) ? new Preference(aName, this) : null;
},
getValue : function prefs_gv(aName, aValue) {
var type = this._prefs.getPrefType(aName);
switch (type) {
case Ci.nsIPrefBranch2.PREF_STRING:
aValue = this._prefs.getComplexValue(aName, Ci.nsISupportsString).data;
break;
case Ci.nsIPrefBranch2.PREF_BOOL:
aValue = this._prefs.getBoolPref(aName);
break;
case Ci.nsIPrefBranch2.PREF_INT:
aValue = this._prefs.getIntPref(aName);
break;
}
return aValue;
},
setValue : function prefs_sv(aName, aValue) {
var type = aValue != null ? aValue.constructor.name : "";
switch (type) {
case "String":
var str = Components.classes["@mozilla.org/supports-string;1"]
.createInstance(Ci.nsISupportsString);
str.data = aValue;
this._prefs.setComplexValue(aName, Ci.nsISupportsString, str);
break;
case "Boolean":
this._prefs.setBoolPref(aName, aValue);
break;
case "Number":
this._prefs.setIntPref(aName, aValue);
break;
default:
throw("Unknown preference value specified.");
}
},
reset : function prefs_reset() {
this._prefs.resetBranch("");
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIPreferenceBranch, Ci.nsISupportsWeakReference])
};
//=================================================
// Preference constructor
function Preference(aName, aBranch) {
this._name = aName;
this._branch = aBranch;
this._events = new Events();
var self = this;
this.branch.events.addListener("change", function(aEvent){
if (aEvent.data == self.name)
self.events.dispatch(aEvent.type, aEvent.data);
});
}
//=================================================
// Preference implementation
Preference.prototype = {
get name() {
return this._name;
},
get type() {
var value = "";
var type = this.branch._prefs.getPrefType(this._name);
switch (type) {
case Ci.nsIPrefBranch2.PREF_STRING:
value = "String";
break;
case Ci.nsIPrefBranch2.PREF_BOOL:
value = "Boolean";
break;
case Ci.nsIPrefBranch2.PREF_INT:
value = "Number";
break;
}
return value;
},
get value() {
return this.branch.getValue(this._name, null);
},
set value(aValue) {
return this.branch.setValue(this._name, aValue);
},
get locked() {
return this.branch._prefs.prefIsLocked(this.name);
},
set locked(aValue) {
this.branch._prefs[ aValue ? "lockPref" : "unlockPref" ](this.name);
},
get modified() {
return this.branch._prefs.prefHasUserValue(this.name);
},
get branch() {
return this._branch;
},
get events() {
return this._events;
},
reset : function pref_reset() {
this.branch._prefs.clearUserPref(this.name);
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIPreference])
};
//=================================================
// SessionStorage constructor
function SessionStorage() {
this._storage = {};
this._events = new Events();
}
//=================================================
// SessionStorage implementation
SessionStorage.prototype = {
get events() {
return this._events;
},
has : function ss_has(aName) {
return this._storage.hasOwnProperty(aName);
},
set : function ss_set(aName, aValue) {
this._storage[aName] = aValue;
this._events.dispatch("change", aName);
},
get : function ss_get(aName, aDefaultValue) {
return this.has(aName) ? this._storage[aName] : aDefaultValue;
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelISessionStorage])
};
//=================================================
// Extension constructor
function Extension(aItem) {
this._item = aItem;
this._firstRun = false;
this._prefs = new PreferenceBranch("extensions." + this._item.id + ".");
this._storage = new SessionStorage();
this._events = new Events();
var installPref = "install-event-fired";
if (!this._prefs.has(installPref)) {
this._prefs.setValue(installPref, true);
this._firstRun = true;
}
this._enabled = false;
const PREFIX_ITEM_URI = "urn:mozilla:item:";
const PREFIX_NS_EM = "http://www.mozilla.org/2004/em-rdf#";
var rdf = Cc["@mozilla.org/rdf/rdf-service;1"].getService(Ci.nsIRDFService);
var itemResource = rdf.GetResource(PREFIX_ITEM_URI + this._item.id);
if (itemResource) {
var extmgr = Cc["@mozilla.org/extensions/manager;1"].getService(Ci.nsIExtensionManager);
var ds = extmgr.datasource;
var target = ds.GetTarget(itemResource, rdf.GetResource(PREFIX_NS_EM + "isDisabled"), true);
if (target && target instanceof Ci.nsIRDFLiteral)
this._enabled = (target.Value != "true");
}
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.addObserver(this, "em-action-requested", false);
var self = this;
gShutdown.push(function(){ self._shutdown(); });
}
//=================================================
// Extension implementation
Extension.prototype = {
// cleanup observer so we don't leak
_shutdown: function ext_shutdown() {
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.removeObserver(this, "em-action-requested");
this._prefs = null;
this._storage = null;
this._events = null;
},
// for nsIObserver
observe: function ext_observe(aSubject, aTopic, aData)
{
if ((aSubject instanceof Ci.nsIUpdateItem) && (aSubject.id == this._item.id))
{
if (aData == "item-uninstalled")
this._events.dispatch("uninstall", this._item.id);
else if (aData == "item-disabled")
this._events.dispatch("disable", this._item.id);
else if (aData == "item-enabled")
this._events.dispatch("enable", this._item.id);
else if (aData == "item-cancel-action")
this._events.dispatch("cancel", this._item.id);
else if (aData == "item-upgraded")
this._events.dispatch("upgrade", this._item.id);
}
},
get id() {
return this._item.id;
},
get name() {
return this._item.name;
},
get enabled() {
return this._enabled;
},
get version() {
return this._item.version;
},
get firstRun() {
return this._firstRun;
},
get storage() {
return this._storage;
},
get prefs() {
return this._prefs;
},
get events() {
return this._events;
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIExtension])
};
//=================================================
// Extensions constructor
function Extensions() {
this._extmgr = Components.classes["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
this._cache = {};
var self = this;
gShutdown.push(function() { self._shutdown(); });
}
//=================================================
// Extensions implementation
Extensions.prototype = {
_shutdown : function exts_shutdown() {
this._extmgr = null;
this._cache = null;
},
/*
* Helper method to check cache before creating a new extension
*/
_get : function exts_get(aId) {
if (this._cache.hasOwnProperty(aId))
return this._cache[aId];
var newExt = new Extension(this._extmgr.getItemForID(aId));
this._cache[aId] = newExt;
return newExt;
},
get all() {
return this.find({});
},
// XXX: Disabled until we can figure out the wrapped object issues
// id: "some@id" or /id/
// name: "name" or /name/
// version: "1.0.1"
// minVersion: "1.0"
// maxVersion: "2.0"
find : function exts_find(aOptions) {
var retVal = [];
var items = this._extmgr.getItemList(Ci.nsIUpdateItem.TYPE_EXTENSION, {});
for (var i = 0; i < items.length; i++) {
retVal.push(this._get(items[i].id));
}
return retVal;
},
has : function exts_has(aId) {
return this._extmgr.getItemForID(aId) != null;
},
get : function exts_get(aId) {
return this.has(aId) ? this._get(aId) : null;
},
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIExtensions])
};
//=================================================
// Singleton that holds services and utilities
var Utilities = {
@ -960,7 +446,6 @@ Bookmark.prototype = {
function BookmarkFolder(aId, aParent) {
this._id = aId;
this._parent = aParent;
this._annotations = new Annotations(this._id);
this._events = new Events();
@ -1184,24 +669,13 @@ var ApplicationFactory = {
}
};
//=================================================
// Application constructor
function Application() {
this._console = null;
this._prefs = null;
this._storage = null;
this._events = null;
this.initToolkitHelpers();
this._bookmarks = null;
this._info = Components.classes["@mozilla.org/xre/app-info;1"]
.getService(Ci.nsIXULAppInfo);
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.addObserver(this, "final-ui-startup", false);
os.addObserver(this, "quit-application-requested", false);
os.addObserver(this, "xpcom-shutdown", false);
}
//=================================================
@ -1215,72 +689,8 @@ Application.prototype = {
// redefine the default factory for XPCOMUtils
_xpcom_factory: ApplicationFactory,
// get this contractID registered for certain categories via XPCOMUtils
_xpcom_categories: [
// make Application a startup observer
{ category: "app-startup", service: true },
// add Application as a global property for easy access
{ category: "JavaScript global privileged property" }
],
get id() {
return this._info.ID;
},
get name() {
return this._info.name;
},
get version() {
return this._info.version;
},
// for nsIObserver
observe: function app_observe(aSubject, aTopic, aData) {
if (aTopic == "app-startup") {
this._extensions = new Extensions();
this.events.dispatch("load", "application");
}
else if (aTopic == "final-ui-startup") {
this.events.dispatch("ready", "application");
}
else if (aTopic == "quit-application-requested") {
// we can stop the quit by checking the return value
if (this.events.dispatch("quit", "application") == false)
aSubject.data = true;
}
else if (aTopic == "xpcom-shutdown") {
this.events.dispatch("unload", "application");
// call the cleanup functions and empty the array
while (gShutdown.length) {
gShutdown.shift()();
}
// release our observers
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.removeObserver(this, "final-ui-startup");
os.removeObserver(this, "quit-application-requested");
os.removeObserver(this, "xpcom-shutdown");
this._info = null;
this._console = null;
this._prefs = null;
this._storage = null;
this._events = null;
this._extensions = null;
this._bookmarks = null;
Utilities.free();
}
},
// for nsIClassInfo
flags : Ci.nsIClassInfo.SINGLETON,
implementationLanguage : Ci.nsIProgrammingLanguage.JAVASCRIPT,
// for nsISupports
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIApplication, Ci.nsIObserver, Ci.nsIClassInfo]),
getInterfaces : function app_gi(aCount) {
var interfaces = [Ci.fuelIApplication, Ci.nsIObserver, Ci.nsIClassInfo];
@ -1288,43 +698,14 @@ Application.prototype = {
return interfaces;
},
getHelperForLanguage : function app_ghfl(aCount) {
return null;
},
// for nsISupports
QueryInterface : XPCOMUtils.generateQI([Ci.fuelIApplication, Ci.nsIObserver, Ci.nsIClassInfo]),
get console() {
if (this._console == null)
this._console = new Console();
return this._console;
},
get storage() {
if (this._storage == null)
this._storage = new SessionStorage();
return this._storage;
},
get prefs() {
if (this._prefs == null)
this._prefs = new PreferenceBranch("");
return this._prefs;
},
get extensions() {
return this._extensions;
},
get events() {
if (this._events == null)
this._events = new Events();
return this._events;
// for nsIObserver
observe: function app_observe(aSubject, aTopic, aData) {
// Call the extApplication version of this function first
this.__proto__.__proto__.observe(aSubject, aTopic, aData);
if (aTopic == "xpcom-shutdown") {
this._bookmarks = null;
Utilities.free();
}
},
get bookmarks() {
@ -1351,5 +732,9 @@ Application.prototype = {
//module initialization
function NSGetModule(aCompMgr, aFileSpec) {
// set the proto, defined in extApplication.js
Application.prototype.__proto__ = extApplication.prototype;
return XPCOMUtils.generateModule([Application]);
}
#include ../../../toolkit/components/exthelper/extApplication.js

View File

@ -61,6 +61,7 @@ DIRS += \
apppicker \
filepicker \
console \
exthelper \
viewconfig \
typeaheadfind \
$(NULL)

View File

@ -0,0 +1,50 @@
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is FUEL.
#
# The Initial Developer of the Original Code is Mozilla Corporation.
# Portions created by the Initial Developer are Copyright (C) 2006
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Mark Finkle <mfinkle@mozilla.com>
# John Resig <jresig@mozilla.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
DEPTH = ../../..
topsrcdir = @top_srcdir@
srcdir = @srcdir@
VPATH = @srcdir@
include $(DEPTH)/config/autoconf.mk
MODULE = exthelper
XPIDL_MODULE = exthelper
XPIDLSRCS = extIApplication.idl
include $(topsrcdir)/config/rules.mk

View File

@ -0,0 +1,689 @@
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FUEL.
*
* The Initial Developer of the Original Code is Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mark Finkle <mfinkle@mozilla.com> (Original Author)
* John Resig <jresig@mozilla.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
//=================================================
// Shutdown - used to store cleanup functions which will
// be called on Application shutdown
var gShutdown = [];
//=================================================
// Console constructor
function Console() {
this._console = Components.classes["@mozilla.org/consoleservice;1"]
.getService(Ci.nsIConsoleService);
}
//=================================================
// Console implementation
Console.prototype = {
log : function cs_log(aMsg) {
this._console.logStringMessage(aMsg);
},
open : function cs_open() {
var wMediator = Components.classes["@mozilla.org/appshell/window-mediator;1"]
.getService(Ci.nsIWindowMediator);
var console = wMediator.getMostRecentWindow("global:console");
if (!console) {
var wWatch = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(Ci.nsIWindowWatcher);
wWatch.openWindow(null, "chrome://global/content/console.xul", "_blank",
"chrome,dialog=no,all", null);
} else {
// console was already open
console.focus();
}
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIConsole])
};
//=================================================
// EventItem constructor
function EventItem(aType, aData) {
this._type = aType;
this._data = aData;
}
//=================================================
// EventItem implementation
EventItem.prototype = {
_cancel : false,
get type() {
return this._type;
},
get data() {
return this._data;
},
preventDefault : function ei_pd() {
this._cancel = true;
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIEventItem])
};
//=================================================
// Events constructor
function Events() {
this._listeners = [];
}
//=================================================
// Events implementation
Events.prototype = {
addListener : function evts_al(aEvent, aListener) {
if (this._listeners.some(hasFilter))
return;
this._listeners.push({
event: aEvent,
listener: aListener
});
function hasFilter(element) {
return element.event == aEvent && element.listener == aListener;
}
},
removeListener : function evts_rl(aEvent, aListener) {
this._listeners = this._listeners.filter(hasFilter);
function hasFilter(element) {
return element.event != aEvent && element.listener != aListener;
}
},
dispatch : function evts_dispatch(aEvent, aEventItem) {
eventItem = new EventItem(aEvent, aEventItem);
this._listeners.forEach(function(key){
if (key.event == aEvent) {
key.listener.handleEvent ?
key.listener.handleEvent(eventItem) :
key.listener(eventItem);
}
});
return !eventItem._cancel;
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIEvents])
};
//=================================================
// PreferenceBranch constructor
function PreferenceBranch(aBranch) {
if (!aBranch)
aBranch = "";
this._root = aBranch;
this._prefs = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Ci.nsIPrefService);
if (aBranch)
this._prefs = this._prefs.getBranch(aBranch);
this._prefs.QueryInterface(Ci.nsIPrefBranch);
this._prefs.QueryInterface(Ci.nsIPrefBranch2);
// we want to listen to "all" changes for this branch, so pass in a blank domain
this._prefs.addObserver("", this, true);
this._events = new Events();
var self = this;
gShutdown.push(function() { self._shutdown(); });
}
//=================================================
// PreferenceBranch implementation
PreferenceBranch.prototype = {
// cleanup observer so we don't leak
_shutdown: function prefs_shutdown() {
this._prefs.removeObserver(this._root, this);
this._prefs = null;
this._events = null;
},
// for nsIObserver
observe: function prefs_observe(aSubject, aTopic, aData) {
if (aTopic == "nsPref:changed")
this._events.dispatch("change", aData);
},
get root() {
return this._root;
},
get all() {
return this.find({});
},
get events() {
return this._events;
},
// XXX: Disabled until we can figure out the wrapped object issues
// name: "name" or /name/
// path: "foo.bar." or "" or /fo+\.bar/
// type: Boolean, Number, String (getPrefType)
// locked: true, false (prefIsLocked)
// modified: true, false (prefHasUserValue)
find : function prefs_find(aOptions) {
var retVal = [];
var items = this._prefs.getChildList("", []);
for (var i = 0; i < items.length; i++) {
retVal.push(new Preference(items[i], this));
}
return retVal;
},
has : function prefs_has(aName) {
return (this._prefs.getPrefType(aName) != Ci.nsIPrefBranch.PREF_INVALID);
},
get : function prefs_get(aName) {
return this.has(aName) ? new Preference(aName, this) : null;
},
getValue : function prefs_gv(aName, aValue) {
var type = this._prefs.getPrefType(aName);
switch (type) {
case Ci.nsIPrefBranch2.PREF_STRING:
aValue = this._prefs.getComplexValue(aName, Ci.nsISupportsString).data;
break;
case Ci.nsIPrefBranch2.PREF_BOOL:
aValue = this._prefs.getBoolPref(aName);
break;
case Ci.nsIPrefBranch2.PREF_INT:
aValue = this._prefs.getIntPref(aName);
break;
}
return aValue;
},
setValue : function prefs_sv(aName, aValue) {
var type = aValue != null ? aValue.constructor.name : "";
switch (type) {
case "String":
var str = Components.classes["@mozilla.org/supports-string;1"]
.createInstance(Ci.nsISupportsString);
str.data = aValue;
this._prefs.setComplexValue(aName, Ci.nsISupportsString, str);
break;
case "Boolean":
this._prefs.setBoolPref(aName, aValue);
break;
case "Number":
this._prefs.setIntPref(aName, aValue);
break;
default:
throw("Unknown preference value specified.");
}
},
reset : function prefs_reset() {
this._prefs.resetBranch("");
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIPreferenceBranch, Ci.nsISupportsWeakReference])
};
//=================================================
// Preference constructor
function Preference(aName, aBranch) {
this._name = aName;
this._branch = aBranch;
this._events = new Events();
var self = this;
this.branch.events.addListener("change", function(aEvent){
if (aEvent.data == self.name)
self.events.dispatch(aEvent.type, aEvent.data);
});
}
//=================================================
// Preference implementation
Preference.prototype = {
get name() {
return this._name;
},
get type() {
var value = "";
var type = this.branch._prefs.getPrefType(this._name);
switch (type) {
case Ci.nsIPrefBranch2.PREF_STRING:
value = "String";
break;
case Ci.nsIPrefBranch2.PREF_BOOL:
value = "Boolean";
break;
case Ci.nsIPrefBranch2.PREF_INT:
value = "Number";
break;
}
return value;
},
get value() {
return this.branch.getValue(this._name, null);
},
set value(aValue) {
return this.branch.setValue(this._name, aValue);
},
get locked() {
return this.branch._prefs.prefIsLocked(this.name);
},
set locked(aValue) {
this.branch._prefs[ aValue ? "lockPref" : "unlockPref" ](this.name);
},
get modified() {
return this.branch._prefs.prefHasUserValue(this.name);
},
get branch() {
return this._branch;
},
get events() {
return this._events;
},
reset : function pref_reset() {
this.branch._prefs.clearUserPref(this.name);
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIPreference])
};
//=================================================
// SessionStorage constructor
function SessionStorage() {
this._storage = {};
this._events = new Events();
}
//=================================================
// SessionStorage implementation
SessionStorage.prototype = {
get events() {
return this._events;
},
has : function ss_has(aName) {
return this._storage.hasOwnProperty(aName);
},
set : function ss_set(aName, aValue) {
this._storage[aName] = aValue;
this._events.dispatch("change", aName);
},
get : function ss_get(aName, aDefaultValue) {
return this.has(aName) ? this._storage[aName] : aDefaultValue;
},
QueryInterface : XPCOMUtils.generateQI([Ci.extISessionStorage])
};
//=================================================
// Extension constructor
function Extension(aItem) {
this._item = aItem;
this._firstRun = false;
this._prefs = new PreferenceBranch("extensions." + this._item.id + ".");
this._storage = new SessionStorage();
this._events = new Events();
var installPref = "install-event-fired";
if (!this._prefs.has(installPref)) {
this._prefs.setValue(installPref, true);
this._firstRun = true;
}
this._enabled = false;
const PREFIX_ITEM_URI = "urn:mozilla:item:";
const PREFIX_NS_EM = "http://www.mozilla.org/2004/em-rdf#";
var rdf = Cc["@mozilla.org/rdf/rdf-service;1"].getService(Ci.nsIRDFService);
var itemResource = rdf.GetResource(PREFIX_ITEM_URI + this._item.id);
if (itemResource) {
var extmgr = Cc["@mozilla.org/extensions/manager;1"].getService(Ci.nsIExtensionManager);
var ds = extmgr.datasource;
var target = ds.GetTarget(itemResource, rdf.GetResource(PREFIX_NS_EM + "isDisabled"), true);
if (target && target instanceof Ci.nsIRDFLiteral)
this._enabled = (target.Value != "true");
}
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.addObserver(this, "em-action-requested", false);
var self = this;
gShutdown.push(function(){ self._shutdown(); });
}
//=================================================
// Extension implementation
Extension.prototype = {
// cleanup observer so we don't leak
_shutdown: function ext_shutdown() {
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.removeObserver(this, "em-action-requested");
this._prefs = null;
this._storage = null;
this._events = null;
},
// for nsIObserver
observe: function ext_observe(aSubject, aTopic, aData)
{
if ((aSubject instanceof Ci.nsIUpdateItem) && (aSubject.id == this._item.id))
{
if (aData == "item-uninstalled")
this._events.dispatch("uninstall", this._item.id);
else if (aData == "item-disabled")
this._events.dispatch("disable", this._item.id);
else if (aData == "item-enabled")
this._events.dispatch("enable", this._item.id);
else if (aData == "item-cancel-action")
this._events.dispatch("cancel", this._item.id);
else if (aData == "item-upgraded")
this._events.dispatch("upgrade", this._item.id);
}
},
get id() {
return this._item.id;
},
get name() {
return this._item.name;
},
get enabled() {
return this._enabled;
},
get version() {
return this._item.version;
},
get firstRun() {
return this._firstRun;
},
get storage() {
return this._storage;
},
get prefs() {
return this._prefs;
},
get events() {
return this._events;
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIExtension])
};
//=================================================
// Extensions constructor
function Extensions() {
this._extmgr = Components.classes["@mozilla.org/extensions/manager;1"]
.getService(Ci.nsIExtensionManager);
this._cache = {};
var self = this;
gShutdown.push(function() { self._shutdown(); });
}
//=================================================
// Extensions implementation
Extensions.prototype = {
_shutdown : function exts_shutdown() {
this._extmgr = null;
this._cache = null;
},
/*
* Helper method to check cache before creating a new extension
*/
_get : function exts_get(aId) {
if (this._cache.hasOwnProperty(aId))
return this._cache[aId];
var newExt = new Extension(this._extmgr.getItemForID(aId));
this._cache[aId] = newExt;
return newExt;
},
get all() {
return this.find({});
},
// XXX: Disabled until we can figure out the wrapped object issues
// id: "some@id" or /id/
// name: "name" or /name/
// version: "1.0.1"
// minVersion: "1.0"
// maxVersion: "2.0"
find : function exts_find(aOptions) {
var retVal = [];
var items = this._extmgr.getItemList(Ci.nsIUpdateItem.TYPE_EXTENSION, {});
for (var i = 0; i < items.length; i++) {
retVal.push(this._get(items[i].id));
}
return retVal;
},
has : function exts_has(aId) {
return this._extmgr.getItemForID(aId) != null;
},
get : function exts_get(aId) {
return this.has(aId) ? this._get(aId) : null;
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIExtensions])
};
//=================================================
// extApplication constructor
function extApplication() {
}
//=================================================
// extApplication implementation
extApplication.prototype = {
initToolkitHelpers: function extApp_initToolkitHelpers() {
this._console = null;
this._storage = null;
this._prefs = null;
this._extensions = null;
this._events = null;
this._info = Components.classes["@mozilla.org/xre/app-info;1"]
.getService(Ci.nsIXULAppInfo);
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.addObserver(this, "final-ui-startup", false);
os.addObserver(this, "quit-application-requested", false);
os.addObserver(this, "xpcom-shutdown", false);
},
// get this contractID registered for certain categories via XPCOMUtils
_xpcom_categories: [
// make Application a startup observer
{ category: "app-startup", service: true },
// add Application as a global property for easy access
{ category: "JavaScript global privileged property" }
],
// for nsIClassInfo
flags : Ci.nsIClassInfo.SINGLETON,
implementationLanguage : Ci.nsIProgrammingLanguage.JAVASCRIPT,
getInterfaces : function app_gi(aCount) {
var interfaces = [Ci.extIApplication, Ci.nsIObserver, Ci.nsIClassInfo];
aCount.value = interfaces.length;
return interfaces;
},
getHelperForLanguage : function app_ghfl(aCount) {
return null;
},
// extIApplication
get id() {
return this._info.ID;
},
get name() {
return this._info.name;
},
get version() {
return this._info.version;
},
// for nsIObserver
observe: function app_observe(aSubject, aTopic, aData) {
if (aTopic == "app-startup") {
this._extensions = new Extensions();
this.events.dispatch("load", "application");
}
else if (aTopic == "final-ui-startup") {
this.events.dispatch("ready", "application");
}
else if (aTopic == "quit-application-requested") {
// we can stop the quit by checking the return value
if (this.events.dispatch("quit", "application") == false)
aSubject.data = true;
}
else if (aTopic == "xpcom-shutdown") {
this.events.dispatch("unload", "application");
// call the cleanup functions and empty the array
while (gShutdown.length) {
gShutdown.shift()();
}
// release our observers
var os = Components.classes["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
os.removeObserver(this, "final-ui-startup");
os.removeObserver(this, "quit-application-requested");
os.removeObserver(this, "xpcom-shutdown");
this._info = null;
this._console = null;
this._prefs = null;
this._storage = null;
this._events = null;
this._extensions = null;
}
},
get console() {
if (this._console == null)
this._console = new Console();
return this._console;
},
get storage() {
if (this._storage == null)
this._storage = new SessionStorage();
return this._storage;
},
get prefs() {
if (this._prefs == null)
this._prefs = new PreferenceBranch("");
return this._prefs;
},
get extensions() {
return this._extensions;
},
get events() {
if (this._events == null)
this._events = new Events();
return this._events;
},
QueryInterface : XPCOMUtils.generateQI([Ci.extIApplication, Ci.nsISupportsWeakReference])
};

View File

@ -0,0 +1,430 @@
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FUEL.
*
* The Initial Developer of the Original Code is Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Joey Minta <jminta@gmail.com> (Original Author)
* Mark Finkle <mfinkle@mozilla.com>
* John Resig <jresig@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
interface nsIVariant;
interface extIPreference;
interface extISessionStorage;
/**
* Interface that gives simplified access to the console
*/
[scriptable, uuid(ae8482e0-aa5a-11db-abbd-0800200c9a66)]
interface extIConsole : nsISupports
{
/**
* Sends a given string to the console.
* @param aMsg
* The text to send to the console
*/
void log(in AString aMsg);
/**
* Opens the error console window. The console window
* is focused if already open.
*/
void open();
};
/**
* Interface holds information about an event.
*/
[scriptable, function, uuid(05281820-ab62-11db-abbd-0800200c9a66)]
interface extIEventItem : nsISupports
{
/**
* The name of the event
*/
readonly attribute AString type;
/**
* Can hold extra details and data associated with the event. This
* is optional and event specific. If the event does not send extra
* details, this is null.
*/
readonly attribute nsIVariant data;
/**
* Cancels the event if it is cancelable.
*/
void preventDefault();
};
/**
* Interface used as a callback for listening to events.
*/
[scriptable, function, uuid(2dfe3a50-ab2f-11db-abbd-0800200c9a66)]
interface extIEventListener : nsISupports
{
/**
* This method is called whenever an event occurs of the type for which
* the extIEventListener interface was registered.
*
* @param aEvent
* The extIEventItem associated with the event.
*/
void handleEvent(in extIEventItem aEvent);
};
/**
* Interface for supporting custom events.
*/
[scriptable, uuid(3a8ec9d0-ab19-11db-abbd-0800200c9a66)]
interface extIEvents : nsISupports
{
/**
* Adds an event listener to the list. If multiple identical event listeners
* are registered on the same event target with the same parameters the
* duplicate instances are discarded. They do not cause the EventListener
* to be called twice and since they are discarded they do not need to be
* removed with the removeListener method.
*
* @param aEvent
* The name of an event
* @param aListener
* The reference to a listener
*/
void addListener(in AString aEvent, in extIEventListener aListener);
/**
* Removes an event listener from the list. Calling remove
* with arguments which do not identify any currently registered
* event listener has no effect.
* @param aEvent
* The name of an event
* @param aListener
* The reference to a listener
*/
void removeListener(in AString aEvent, in extIEventListener aListener);
};
/**
* Interface for simplified access to preferences. The interface has a
* predefined root preference branch. The root branch is set based on the
* context of the owner. For example, an extension's preferences have a root
* of "extensions.<extensionid>.", while the application level preferences
* have an empty root. All preference "aName" parameters used in this interface
* are relative to the root branch.
*/
[scriptable, uuid(ce697d40-aa5a-11db-abbd-0800200c9a66)]
interface extIPreferenceBranch : nsISupports
{
/**
* The name of the branch root.
*/
readonly attribute AString root;
/**
* Array of extIPreference listing all preferences in this branch.
*/
readonly attribute nsIVariant all;
/**
* The events object for the preferences
* supports: "change"
*/
readonly attribute extIEvents events;
/**
* Check to see if a preference exists.
* @param aName
* The name of preference
* @returns true if the preference exists, false if not
*/
boolean has(in AString aName);
/**
* Gets an object representing a preference
* @param aName
* The name of preference
* @returns a preference object, or null if the preference does not exist
*/
extIPreference get(in AString aName);
/**
* Gets the value of a preference. Returns a default value if
* the preference does not exist.
* @param aName
* The name of preference
* @param aDefaultValue
* The value to return if preference does not exist
* @returns value of the preference or the given default value if preference
* does not exists.
*/
nsIVariant getValue(in AString aName, in nsIVariant aDefaultValue);
/**
* Sets the value of a storage item with the given name.
* @param aName
* The name of an item
* @param aValue
* The value to assign to the item
*/
void setValue(in AString aName, in nsIVariant aValue);
/**
* Resets all preferences in a branch back to their default values.
*/
void reset();
};
/**
* Interface for accessing a single preference. The data is not cached.
* All reads access the current state of the preference.
*/
[scriptable, uuid(2C7462E2-72C2-4473-9007-0E6AE71E23CA)]
interface extIPreference : nsISupports
{
/**
* The name of the preference.
*/
readonly attribute AString name;
/**
* A string representing the type of preference (String, Boolean, or Number).
*/
readonly attribute AString type;
/**
* Get/Set the value of the preference.
*/
attribute nsIVariant value;
/**
* Get the locked state of the preference. Set to a boolean value to (un)lock it.
*/
attribute boolean locked;
/**
* Check if a preference has been modified by the user, or not.
*/
readonly attribute boolean modified;
/**
* The preference branch that contains this preference.
*/
readonly attribute extIPreferenceBranch branch;
/**
* The events object for this preference.
* supports: "change"
*/
readonly attribute extIEvents events;
/**
* Resets a preference back to its default values.
*/
void reset();
};
/**
* Interface representing an extension
*/
[scriptable, uuid(10cee02c-f6e0-4d61-ab27-c16572b18c46)]
interface extIExtension : nsISupports
{
/**
* The id of the extension.
*/
readonly attribute AString id;
/**
* The name of the extension.
*/
readonly attribute AString name;
/**
* Check if the extension is currently enabled, or not.
*/
readonly attribute boolean enabled;
/**
* The version number of the extension.
*/
readonly attribute AString version;
/**
* Indicates whether this is the extension's first run after install
*/
readonly attribute boolean firstRun;
/**
* The preferences object for the extension. Defaults to the
* "extensions.<extensionid>." branch.
*/
readonly attribute extIPreferenceBranch prefs;
/**
* The storage object for the extension.
*/
readonly attribute extISessionStorage storage;
/**
* The events object for the extension.
* supports: "uninstall"
*/
readonly attribute extIEvents events;
};
/**
* Interface representing a list of all installed extensions
*/
[scriptable, uuid(de281930-aa5a-11db-abbd-0800200c9a66)]
interface extIExtensions : nsISupports
{
/**
* Array of extIExtension listing all extensions in the application.
*/
readonly attribute nsIVariant all;
/**
* Determines if an extension exists with the given id.
* @param aId
* The id of an extension
* @returns true if an extension exists with the given id,
* false otherwise.
*/
boolean has(in AString aId);
/**
* Gets a extIExtension object for an extension.
* @param aId
* The id of an extension
* @returns An extension object or null if no extension exists
* with the given id.
*/
extIExtension get(in AString aId);
};
/**
* Interface representing a simple storage system
*/
[scriptable, uuid(0787ac44-29b9-4889-b97f-13573aec6971)]
interface extISessionStorage : nsISupports
{
/**
* The events object for the storage
* supports: "change"
*/
readonly attribute extIEvents events;
/**
* Determines if a storage item exists with the given name.
* @param aName
* The name of an item
* @returns true if an item exists with the given name,
* false otherwise.
*/
boolean has(in AString aName);
/**
* Sets the value of a storage item with the given name.
* @param aName
* The name of an item
* @param aValue
* The value to assign to the item
*/
void set(in AString aName, in nsIVariant aValue);
/**
* Gets the value of a storage item with the given name. Returns a
* default value if the item does not exist.
* @param aName
* The name of an item
* @param aDefaultValue
* The value to return if no item exists with the given name
* @returns value of the item or the given default value if no item
* exists with the given name.
*/
nsIVariant get(in AString aName, in nsIVariant aDefaultValue);
};
[scriptable, uuid(ba9442ee-7070-44fb-8157-c111e1fa70b6)]
interface extIApplication : nsISupports
{
/**
* The id of the application.
*/
readonly attribute AString id;
/**
* The name of the application.
*/
readonly attribute AString name;
/**
* The version number of the application.
*/
readonly attribute AString version;
/**
* The console object for the application.
*/
readonly attribute extIConsole console;
/**
* The extensions object for the application. Contains a list
* of all installed extensions.
*/
readonly attribute extIExtensions extensions;
/**
* The preferences object for the application. Defaults to an empty
* root branch.
*/
readonly attribute extIPreferenceBranch prefs;
/**
* The storage object for the application.
*/
readonly attribute extISessionStorage storage;
/**
* The events object for the application.
* supports: "load", "ready", "quit", "unload"
*/
readonly attribute extIEvents events;
};